Cashu Debuts Physical Card for Offline Bitcoin Payments
The new hardware enables Bitcoin-backed ecash transactions without the need for an active internet connection.
Updated on Oct. 29, 2026 in Consumer Electronics
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Cashu has introduced a physical tap-to-pay card designed to facilitate Bitcoin-backed ecash payments in offline environments. The card utilizes a specialized chip to store tokens, allowing users to make payments by simply tapping a merchant terminal.
Why it matters
This technology addresses the critical barrier of internet dependency in digital currency payments, potentially expanding Bitcoin utility to remote or infrastructure-limited settings. It enables users to transact in scenarios where traditional online connectivity is unavailable.
The card uses an NXP J3R180 dual-interface JavaCard chip with capacity for 128 ecash slots. Each unit costs approximately $9 and operates on the NUT-CCP draft specification to manage Bitcoin-backed tokens.
The players
Cashu
Cashu is an organization focused on developing protocols for Bitcoin-based ecash.
The details
Users load ecash onto the card via a wallet, which the card then stores until a transaction is initiated at a terminal. During a tap, the card generates a signature that burns the spent tokens, while merchants assume double-spending risk until their terminal reconnects to the mint for final settlement.
Timeline
Cashu officially introduced the physical tap-to-pay card on October 29, 2026.
The Tech Race
This development represents a significant pivot toward offline-first payment hardware, diverging from the industry-standard reliance on real-time internet connectivity seen in networks like the Lightning Network. It replaces the assumption of continuous data access with a local tokenized verification system.
Users must exercise caution because the stored balance is permanently lost if the physical card is misplaced. Because transactions rely on offline signatures, shoppers should verify merchant terminal compatibility before attempting to use the card for retail payments.
The takeaway
This technology demonstrates that digital currency can function like physical cash in offline settings through tokenized hardware storage. Users should prioritize securing their cards as they would physical wallets, as the lack of account recovery features means any loss of the card is final.
Further reading
Learn more about the latest innovations in digital payment hardware at the Consumer Electronics hub.
More information
Access technical details and documentation through the project hardware applet repository.
Source note: This article includes information reported by Crypto Briefing.
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Would you trust a physical card to store your Bitcoin for offline spending?
